1. Input Port: Bluetooth Wireless + 3.5mm Plug
2. Bluetooth Version: CSR8635 Chip, Bluetooth V4.0
3. Wireless Transmission Distance: ＞10m
4. Working Voltage: 3.7V
5. Max Input Power: 500mW
6. Max Output Power: 90mW
7. Noise Cancel: ANC(feedback）
8. De-noising Depth: 18-20dB
9. De-noising Effective Bandwidth: 50-1000Hz
10. SNR: 90dB
11. Battery Capacity: 370mAh
12. Woking Time: 20h
13. Charging Time: 1.5h
14. Cell Diameter: 40mm
15. Impedance: 32 Ω
16. Frequency Response: 20-20kHz
17. Sensitivity: 105dB
18. Length of Cable: 1.5m